12132221223120 has 40 divisors (see below), whose sum is σ = 37609885792416. Its totient is φ = 3235258992768.

The previous prime is 12132221223079. The next prime is 12132221223121. The reversal of 12132221223120 is 2132212223121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132221223121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25275460642 + ... + 25275461121.

Almost surely, 2^{12132221223120} is an apocalyptic number.

12132221223120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12132221223120 is an abundant number, since it is smaller than the sum of its proper divisors (25477664569296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12132221223120 is a wasteful number, since it uses less digits than its factorization.

12132221223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50550921779 (or 50550921773 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12132221223120 its reverse (2132212223121), we get a palindrome (14264433446241).

It can be divided in two parts, 1213222 and 1223120, that added together give a palindrome (2436342).

The spelling of 12132221223120 in words is "twelve trillion, one hundred thirty-two billion, two hundred twenty-one million, two hundred twenty-three thousand, one hundred twenty".